Table S1. Knee arthroscopy procedures with numbers from 2004 to 2016, inclusive for age 50+. Table S2. Number of knee arthroscopies and total knee replacement (age 50 or over) in NSW between 2004 and 2016. Table S3. Reductions in numbers of knee arthroscopies for age 50+ between 2011 and June 30, 2017 by district, public and private hospitals, NSW. (DOCX 18 kb)